Book Image

Microsoft Power BI Complete Reference

By : Devin Knight, Brian Knight, Mitchell Pearson, Manuel Quintana, Brett Powell
Book Image

Microsoft Power BI Complete Reference

By: Devin Knight, Brian Knight, Mitchell Pearson, Manuel Quintana, Brett Powell

Overview of this book

Microsoft Power BI Complete Reference Guide gets you started with business intelligence by showing you how to install the Power BI toolset, design effective data models, and build basic dashboards and visualizations that make your data come to life. In this Learning Path, you will learn to create powerful interactive reports by visualizing your data and learn visualization styles, tips and tricks to bring your data to life. You will be able to administer your organization's Power BI environment to create and share dashboards. You will also be able to streamline deployment by implementing security and regular data refreshes. Next, you will delve deeper into the nuances of Power BI and handling projects. You will get acquainted with planning a Power BI project, development, and distribution of content, and deployment. You will learn to connect and extract data from various sources to create robust datasets, reports, and dashboards. Additionally, you will learn how to format reports and apply custom visuals, animation and analytics to further refine your data. By the end of this Learning Path, you will learn to implement the various Power BI tools such as on-premises gateway together along with staging and securely distributing content via apps. This Learning Path includes content from the following Packt products: • Microsoft Power BI Quick Start Guide by Devin Knight et al. • Mastering Microsoft Power BI by Brett Powell
Table of Contents (25 chapters)
Title Page
About Packt
Contributors
Preface
Index

Building calculated columns


Open the pbix file Chapter 4 – Leveraging DAX from the book files

Calculated columns are stored in the table in which they are assigned, and the values are static until the data is refreshed. You will learn more about refreshing data in a later chapter.

There are many use cases for calculated columns, but the two most common are as follows:

  • Descriptive attributes 
  • Concatenated key columns

 

Now you are going to create your first calculated column. Before you get started, though, you need to first know that Power BI Desktop has IntelliSense. IntelliSense will help you out a lot when writing code, as you will discover very soon. This built-in functionality will autocomplete your code as you go, and will also help you explore and discover new functions in the DAX language. In order to take advantage of IntelliSense, you simply need to start typing in the formula bar. Now you are ready to start writing DAX!

Click on the Data View—this is located on the left side of the Power...